Drainage and vent fitting for plumbing systems



' -DRAINAGE AND VENT FITTING FOR PLUMBING SYSTEMS Filed sept. 21. 1922'HIIIIIIIIIIIIIL 5 Patented Jan. 20, 1925.

UNITED STATES PATENT O'FFCE.

JOHN L. FRUIN, OF CHICAGO, ILLNOS; ROBERT E. FRUIN EXECUTOR F THE SAIDJOHN L. FRUIN, DECEASEID'.

DRAINAGE AND VENT FITTING FOR PLUMBTNG SYSTEMS.

Application filed September 21, 1922.

To all 'whom i may concern.'

Be it known that l, JOHN L. FRUIN, a. citi- Zen ot the United States,vresiding at Chicago, in the county ot Cook and State oi illinois, haveinvented certain new and useful improvements in Drainage and VentFittings for Plumbing Systems, of which the following is aspecification.

This invention relates in part to an improved plumbing system designedto handle the discharge from a closet, bathtub, lavatory or sink in amultiple story building; and the main object of the invention is toprovide special drainage and vent fittings at the top and intermediatefloors ot such a character and structure as to permit the main soil andvent stack and the revent stack to lie in close juxtaposition and occupybut a minimum ot' space in a vertical wall of the building in which thesystem is installed.

Other objects. and attendant advantages ot the invention will beapparent to persons skilled in the art as the same becomes betterunderstood by reference to the 'following detailed description, taken inconnection with the accompanying drawing, in which- Fig. l is anelevation ot my improved plumbing system installed in a manner toreceive the discharge from a closet or bathtub; l

Fig. 2 is a similar View of the same system, installed in a manner toaccommodate the discharge from a lavatory or sink;

Fig. 3 is an elevation in a plane at right angles to that ot Figs. 1 and2 of the to-pmost drainage and vent fitting;

Fig. i is a similar view ot the drainage and vent fitting used atintermediate floors; and

Fig. 5 is a cross-section on the line 5-5 of Fig. l.

Referring to the drawin g, 1 designates the lower floor, 2 anintermediate fioor, 3 a top floor, and t a roof of a multiple storybuilding such as is adapted to be served by my improved plumbing system.

Referring first to Fig. 1, the main vertical soil and vent stackcomprises an upper straight pipe section 5 extending thro-ugh the roof4, the main stem 6 ot a drain and ventfitting located at the top fioor 3and connected at its upper end into the pipe section 5, an intermediatestraight pipe section 7 connected into the lower end ot thc main stem ofthe fitting 6, a main stem 8 of an in- Serial No. 589,603.

termediate drain and vent fittingv located at the intermediate floor andconnected into the lower end of the pipe section 7 another straight pipesection 9 connected at its upper end to the lower end of the stem v8 otthe intermediate fitting, the arm l() of a lower fitting located at thefirst floor l, and the lower portion ot the main stem ll of' said lowerfitting, this latter connecting into the house drain indicated at 1.2.vl The revent stack comprises an elbow branch 13 ot the top titting, astraight ver ticalpipe section 14,con'ununicating with the lower end ofthe elbow branch 13, acurvedor bent section 15 communicating with thelower end of the vertical straight section 14, and a lower straightsection le con'in-innieating at its upper end with thevbent section 15and at its lower end with the upper end of the main stem ll ofthelowermost fitting.

The upper fitting is provided with a lateral drain branch 17 disposedbelow the junction o-il the members (3 and 13; the intermediate fittinghas an arm 1S on which is a lateral drainage branca. 19, and the lowerfitting is equipped with a lateral drainage branch located above thejunction oi the main stem 11 and arm l0.

At the intermediate floor is a vertical branch 2l of the revent stackthat entends fil'om the junction ot the sections 11i and l5 straightdownwardly into the upper end of the fitting arm. 18 to provide a veuttor the drainage branch 19.

It will be observed that in the described construction the vertical soiland vent stack and the revent stack lie very close together andsubstantially contiguous, and that the reventing of all the fixturesbelow the top and neXt to the top floors is secured by including in therevent stack the laterally offset curved or bent section 15 at eachintermediate floor by which the revent conduit is carried past thedrainage branch 19 at each intermediate floor. I have herein shown but asingle intermediate floor; but it will be understood that where thereare several intermediate fioors, the structure and arrangement hereinshown at the intermedr ate floor 2 will simply be repeated at all theother intermediate floors.

The compact system above described may, so tar as the generalorganization is concerned, be built up 'from suitable pipe sections andfittings as desired; but a considerllt) able economy in the number ofparts required can be effected by employing the novel integral fittingsshown at the top and intermediate floors; the stem 6, elbow vent branch13, and drainage branch 17 of the upper iitting being made integral; andthe main and branch drain elements 8, 18 and l19 and the main and branchvent elements 15 and 21 of the intermediate fitting being all madeintegral. By employing the integral iittings herein shown and described,the entire system can be assembled with the additionof ordinary straightpipe sections such as 5, 7, 9, 14 and 16.

With. the system installed in the relation to the floors shown in Fig.1, the drainage branches 17, 19 and 20 are adapted to serve either acloset or bathtub. In Fig.V 2 I have illustrated the' arrangement of thesystem in relation to the floor levels that will be employed where thedrainage branches 17, 19 and 20 'serve a lavatory or sink. Thestructural organization of the system shown in .Fig 2 is'identieal withthat shown in Fig. 14.

l claim- 1. A onepiece intermediate drainage and ventV itting forplumbing systems, comprising a vertical limb adapted to term part of awaste and vent stack and having a straight upwardly inclined lateralarm, a second vertical limb parallel with said iii-stnamed limbandvcontinuous at its lower end with said arm and having a Ventingfunction, a lateral drainage branch on said arm and a third limb mergedat its upper end into said second vertical limb and extending downwardlyand inwardly beneath said arm, said third limb lying in the plane ofsaid vertical limbs and adapted to form part of a revent stack.

2. A one-piece intermediate drainage and Vent fitting for plumbingsystems, comprising' a vertical limb adapted to form part of a waste andvent stack and having a straight upwardly inclined lateral arm, a secondvertical limb parallel with said first-nanied limb in close proximitythereto and merged at its lower end into the upper end of said arm andharing a venting function, a lateral drainage branch on said arm and athird limb disposed alongside, and iu thc plane, of said Vertical limbs,said third limb merged by an elbow bend at its upper end into saidsecond vertical limb adjacent to the upper end ot the latter and at itslower end inclined downwardly and `inwardly be ncath said arm, saidthird limb adapted to -t'ormpart of a revent stack.

3. A one-piece top drainage and vent fitting for plumbing systems,comprising a Vertical limb adapted to `form part of a waste and ventstack, a depending elbow branch on the upper end of said vertical limbadapted to form the upper end of a re- Vent stack, and a lateraldrainage branch on said vertical limb below the junction of the latterand said depending elbow branch, and extending in a vertical plane at anangle to the vertical plane of said elbow branch.

JOHN L. FRUIN.

